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Lithium Ore Grinding Mills

09/07/2024 admin

SBM Ultrafine Powder Tech’s lithium ore grinding mills are devices used to grind lithium ore into fine powder. Different types of mills are suitable for different ores and production requirements.

Lithium Ore

Lithium ore is a mineral containing lithium and is an important raw material for the production of lithium compounds and metallic lithium. The main types of lithium ores include:

Spodumene

Spodumene:

The most important lithium ore, with a chemical composition of LiAl(SiO3)2. It is usually green or yellow. After high-temperature treatment, spodumene undergoes a crystal transformation, making the extraction of lithium more convenient.

Lepidolite

Lepidolite:

A lithium-containing mica mineral with a chemical composition of K(Li,Al)3(Si,Al)4O10(F,OH)2. It is one of the main sources of lithium and is usually purple or pink.

Petalite

Petalite:

The chemical composition is LiAlSi4O10. It is a lithium-containing feldspar mineral, usually white or gray.

Amblygonite

Amblygonite:

The chemical composition is (Li,Na)AlPO4(F,OH). It is a lithium-containing phosphate mineral, usually light yellow or green.

Lithium ore is mainly used to extract lithium, which is widely used in batteries, ceramics, glass, lubricants, aerospace, medicine and other fields.

In recent years, due to the increasing demand for lithium batteries in electric vehicles and energy storage equipment, the mining and utilization of lithium ore has become more important.

Lithium Ore Processing

The process of processing lithium ore includes multiple steps.

There are 7 main steps from ore mining to the final extraction of lithium compounds:

1. Ore mining

2. Crushing and screening

3. Grinding

4. Ore dressing

5. Calcination

6. Leaching

7. Purification

Lithium ore processing

Lithium Ore Processing Equipment

The main equipment required in each of the above steps includes:

  • Crushers (jaw crushers, cone crushers)
  • Screening equipment
  • Lithium ore grinding mills (Raymond mill, ultrafine mill, ball mills, etc)
  • Floatation machines
  • Gravity separation equipment
  • Roasting furnaces
  • Leaching tanks
  • Filters
  • Evaporators and crystallizers

Lithium Ore Grinding Mills

SBM’s lithium ore grinding mills are mainly divided into four categories: Raymond mill, ultrafine mill, ball mill and vertical mill

Lithium Ore Grinding Mills

1. Raymond mill– medium fine lithium ore grinding mill

YGM Raymond mill is a common medium-fine grinding equipment, suitable for grinding lithium ore.

Working Principle

Raymond mill grinds ore into fine powder through the rolling and grinding action of the grinding roller on the grinding ring. The ore enters through the feed port, and the grinding roller rolls on the rotating grinding ring to grind the ore into fine powder.

Features

  • Compact structure: small footprint, easy installation and maintenance.
  • Simple operation: high degree of automation and simple operation.
  • Adjustable product fineness: by adjusting the pressure of the grinding roller and grinding ring, the fineness of the product can be controlled.

Main Parameters

  • Number and size of grinding rollers: The number and size of grinding rollers can vary depending on the processing capacity.
  • Grinding ring diameter: affects the grinding capacity and product fineness.
  • Spindle speed: generally between 80-120 rpm.

2. Ultrafine grinding mill– ultrafine lithium ore grinding mill

HGM Ultrafine grinding mill is specially used for ultrafine grinding, suitable for processes that require ultrafine powder for lithium ore.

Working Principle

The ultrafine grinding mill grinds the ore into ultrafine powder through the interaction of multi-stage grinding rollers and grinding rings. The ore enters through the feed port, and the multi-stage grinding rollers roll on the rotating grinding rings to grind the ore into ultrafine powder.

Features

  • Ultrafine grinding: It can grind powder with extremely small particle size, suitable for high-demand processes.
  • High efficiency and energy saving: high grinding efficiency and low energy consumption.
  • Adjustable product fineness: The fineness of the product can be controlled by adjusting the pressure of the grinding rollers and grinding rings.

Main Parameters

  • Number and size of grinding rollers: The number and size of grinding rollers can vary depending on the processing capacity.
  • Grinding ring diameter: affects the grinding capacity and product fineness.
  • Spindle speed: Generally between 200-500 rpm.

3. Ball mill– fine lithium ore grinding mill

Ball mill is a commonly used grinding equipment, widely used in the fine grinding process of ore.

Working Principle

The ball mill grinds the ore into fine powder through the impact and grinding action of steel balls in the cylinder. The ore enters from one end of the cylinder, is ground by the rotating cylinder and the steel balls inside, and the fine powder is discharged from the other end.

Features

  • High grinding efficiency: the contact surface between the steel ball and the ore is large, and the grinding effect is good.
  • Wide application range: suitable for ores of various hardness, including spodumene, lepidolite, etc.
  • Simple operation: simple structure and easy maintenance.

Main Parameters

  • Cylinder diameter and length: The diameter and length of the cylinder can vary depending on the processing capacity.
  • Speed: generally between 20-40 rpm
  • Ball loading: The loading amount and size of the steel balls affect the grinding effect.

4. Vertical mill– ultrafine lithium ore grinding mill

CLUM vertical mill is an efficient ultrafine grinding equipment, suitable for lithium ore that requires ultrafine grinding.

Function

CLUM vertical mill is an efficient ultrafine grinding equipment, suitable for lithium ore that requires ultrafine grinding.

Working Principle

Vertical mill grinds ore into fine powder through the rolling and grinding action of the grinding roller on the grinding disc. The ore enters through the feed port, and the grinding roller rolls on the rotating grinding disc to grind the ore into fine powder.

Features

  • High efficiency and energy saving: The contact area between the grinding roller and the grinding disc is large, the grinding efficiency is high, and the energy consumption is low.
  • Small footprint: Vertical structure, small footprint, easy installation.
  • Adjustable product fineness: By adjusting the pressure of the grinding roller and the grinding disc, the fineness of the product can be controlled.

Main Parameters

  • Number and size of grinding rollers: Depending on the processing capacity, the number and size of grinding rollers can vary.
  • Grinding disc diameter: affects the grinding capacity and product fineness.
  • Spindle speed: Generally between 100-300 rpm.
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